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Technical & Engineering Data


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Technical & Engineering Data - 3

M = Material to be conveyed Determine where or how the replacement hose or assembly is to be used. Most often only a duplicate of the original hose will have to be made. Make sure all requirements of the application are fullled. Such as Where will the hose be used? Օ Fluid and/or ambient temperature? Hose construction? Օ Equipment type? Fluid compatibility? Օ Thread end connection type? Working and surge pressures? Օ Environmental conditions? Suction application? Օ Routing requirements? Thread type? Օ Government and industry standards being met? Unusual mechanical loads? Օ Non-conductive...

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Technical & Engineering Data - 5

Warming uids thins them, so they are moved more easily. This is the turbulence of uid against the inside walls of the hose assembly and within itself generating heat and causing pressure drop. Pressure drop increases with ow rate for the same size hose. Dierent uids behave dierently under pressure. Thicker uids are moved with greater diculty and will exhibit greater pressure drop because of greater friction loss. Temperature of the uid The longer the hose assembly, the more surface area there is for friction to decrease pressure. Օ Flow rate Type of uid Օ Length of hose assembly Aects the...

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Technical & Engineering Data - 6

The best way is to contact your Gates representative who is trained and equipped to quickly solve such problems for you. He will need the following information: type of application, uid type and viscosity (at desired temperature), uid temperature, uid ow rate, hose size and length, number and type of ttings. The following graph will also help you to determine the amount of pressure drop. > Imperial gallons per minute > Pressure loss in PSI per metre Pressure loss in millibars per metre Litres per minute Based on: uid viscosity 20 cSt specic gravity 0.875 >

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Technical & Engineering Data - 7

Several factors, such as thread end compatibility, corrosion resistance, vibration, temperature, pressure, use of adaptors and uid compatibility must be considered when selecting a coupling. > Some couplings connect directly to a port, while others need adaptors. This can inuence coupling selection. Connecting directly to the port eliminates the need for an additional connection, but can make installation more dicult. Adaptors can make installation easier and eliminate the need for coupling orientation, but introduce an additional connection or possible leak point. > Thread ends must be...

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Technical & Engineering Data - 8

Male thread Female thread No thread Metric BSP MBSPT FBSPORX BSPBJ MDL / MDH FDLORX / FDHORX MSP MFG FDLX / FDHX FPFL FFGX MPFL DBJ (British Standard Pipe) MBSPP FBFFX MBFF JIC SAE MJ FJX MFFOR FFORX FL (Joint Industrial Council) (Society of Automotive Engineers) NPTF MP MFA FSX FLH MS MB MBX (American Standard Pipe Taper Fuel) MPX UNS Japanese metric MIX FKX FLK (Unied National Special) JIS FJISX (Japanese Industrial Standard) >

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Technical & Engineering Data - 15

FFGX French gaz equivalents to the FDLX/FDHX and FDLORX/FDHORX couplings. FFGX > FRENCH GAZDIN 24 cone MFG 24а cone > FDLORX/FDHORX Soft seal metric coupling range, only suitable for 24 cone, check application carefully when replacing FDLX/ FDHX couplings. FDLORX/FDHORX 24а cone with Oђ ring > MSP Metric standpipe tting complete with nut and cutting ring. MSP Nut DIN 3870 MDL/MDH 24 cone DIN ISO 83434-4 > FDLX/FDHX Use for replacement couplings only when sealing to a 60а cone, for all other applications use the FDLORX/FDHORX couplings. FDLX/FDHX Connect to either 24 or 60а cone >

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Technical & Engineering Data - 16

Following the steps below will enable you to identify an unknown coupling thread in a short period of time. Step 1: Measure diameter of thread, outside of male threads and inside of female threads. MaleFemaleؘ e.g. If inside diameter is 9.9 mm female would be 04FJX. Step 2: Refer to the Thread size identication guideӔ (see page 202) for details of coupling type and size. e.g. If outside diameter is 11.0 mm male would be 04MJ. N.B. On MP/MB and MBSBPT/MT taper threads the maximum is given. >

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Technical & Engineering Data - 17

Step 3: Check the coupling thread. With a thread gauge you can check the number of threads per inch (for imperial couplings) or the pitch of the threads (for metric couplings). Imperial threads Metric threads No. of threads per inch pitch N.B. Coupling thread identication kits containing reference charts, vernier, seat gauges and thread gauges are available. Please ask for details. >

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Technical & Engineering Data - 22

Hose assemblies are made according to overall length i.e. cone face to cone face, or where elbow couplings are used, to the centre line of the cone face. DIN 20066 will provide you with more detailed information on general length tolerance. When determining the length of hose assemblies, provide sucient length to prevent bending strain from localizing at the back of the coupling. In the gure below dimension BӔ allows for a strain section of hose beyond the coupling to prevent concentration of bending strain. TӔ designates the amount of travel. AӔ indicates the smallest diameter to which the...

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Technical & Engineering Data - 23

Fitting orientation is necessary when a hose assembly requires two angled couplings that are not in line when viewed from one end of a hose. Fittings must be orientated to each other to ensure proper installation with minimal stress on the hose from twisting. Fitting orientation is measured from the centerline of the rst coupling held in a vertical position and looking at the assembly from the second end by measuring in a clockwise direction. Orientation angle tolerance should be 3 degrees for assemblies equal or less than 600 mm and ѱ5 degrees for assembly lengths over 600 mm. 1 > st end...

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Technical & Engineering Data - 24

RIGHTWRONG Avoid twisting of hose lines bent in two planes by clamping hose at change of plane. Adequate hose length is necessary to distribute movement on exing applications and to avoid abrasion. To allow for length changes when hose is pressurized, do not clamp at bends so that curves will absorb changes. Do not clamp high and low pressure lines together. RIGHTWRONG RIGHTWRONG Route hose directly by using 45 and/or 90а adaptors and ttings. Avoid excessive hose length to improve appearance. NO PRESSUREHIGH PRESSURE When radius is below the required minimum, use an angle adaptor to avoid...

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